Prostacyclin, PGI2, prevents ________.
A. vasoconstriction
B. platelet aggregation
C. clot retraction
D. vasomotion
Answer: B
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Answer the following statements true (T) or false (F)
1. The soft palate rises reflexively to open the nasopharynx when we swallow food. 2. Beta oxidation is the initial phase of fatty acid oxidation, and it occurs in the cytoplasm. 3. The increased use of noncarbohydrate molecules for energy to conserve glucose is called glucose sparing. 4. Except for lactose and some glycogen, the carbohydrates we ingest are mainly from animals. 5. The term essential nutrient refers to the chemicals that can be interconverted in the liver so that the body can maintain life and good health.
Most amine and peptide hormones circulate in the plasma as free hormones, whereas steroid hormones are mostly bound to circulating binding proteins.
Answer the following statement true (T) or false (F)
The semilunar valves prevent the backflow of blood from the
arteries to the ventricles. veins to the atria. ventricles to the atria. arteries to the atria.
The inflammatory response
A. stimulates erythrocytes to leave the blood. B. delays healing of damaged tissues. C. prevents the spread of an infection. D. depresses immunity. E. is harmful and should be immediately reversed.